Question

A ________ -tier design includes a middle layer between the client and server that processes the client requests and translates them into data access commands that can be understood and carried out by the server.a. two b. one c. four d. three

Answer 1

Answer:

d . 3-Tier Design

Explanation:

There are different types of tier Architecture 3-Tier , 2-Tier and 1-Tier

3 - Tier Architecture

3- Tier Design has three layers

• Presentation Layer
• Business Layer/Logic

• Database Layer /Data                                                                                                              

Presentation layer is level  of Application (User Interface) .Its main function is that it translates the task .

Logic Layer is the level that coordinates with the application make logic decisions and performs calculation.It moves and process data between two layers

Data Tier is store and retrieved from database .Information is back to logic layer and then back to user

Best Example is Student Table As it is attached.

So 3 tier include a middle layer Logic layer that communicate between presentation and data layer